Rotary shaft and journal-box



(No Model.)

' Al Sl ROTARY SHAFT AND JOURNAL BOX.

5 9 RV A Patented Apr WITNEEEEE.-

THE mms PEYERscu. mamme.. wumm'ou u L NrTED STATES ATENT Fries.

AMBROSE S. VOSE, OF BOSTON, MASSACHUSETTS, ASSIGN OR TO TI-IE VOSE EDGEFINISPIING COMPANY, OF NASHUA, NEW HAMPSHIRE.

ROTARY SHAFT AND JOURNAL-Box.

SPECIFICATION forming part of Letters Patent No. 538,055, dated April23, 17895.

Application filed January 24,1895. Serial N0.536,029 (No model.) y v .Toall whom t may concern:

Beit known that I, AMBRosE S. Voss, residing in Boston, county ofSuffolk, and State of Massachusetts, have invented an'Improvement inRotary Shafts and Journal-Boxes, of which the following description, inconnection with the accompanying drawings, is a specification, likeletters on the drawings representing like parts.

This invention relates to a novel construction of rotary shaft and itsjournal boxes, whereby lateral or radial motion or vibration of theshaft is avoided, and this invention is especially adapted to machinesin' which an operating tool is secured directly to the shaft to rotatetherewith;

In the present instance, this invention is illustrated in a machine fortreating the heels of boots or shoes, and the said machine is hereinshown as provided with a rotary cutter, which may be of any suitable ordesired construction for trimming the heels or edges of the sole ofboots and shoes.

In machines of the class referred to, as now commonly constructed andknown to me, the rotarycutter shaft is made cylindrical and is supportedin cylindrical journal boxes, and after running for a substantiallyshort time, the journal box becomes worn or enlarged, so that, therotary shaft is afforded a slight radial or lateral movement, whichproduces a vibration or trembling of the shaft and its attached cutteror tool, and as a result, the work is imperfectly performed, that is,the rotary cutter or tool chatters, and minutely gouges the leather orother material, producing imperfections in the finished work, so that,after running ,a substantially short time, the machine is renderedpractically inoperative for perfect work, `until supplied with newjournal boxes, which results in inconvenient delays and expense.

This invention has for its object to obviate the above mentioned defectsin machines of the class referred to, and this result is accomplished ina manner as will be described. In accordance with this invention, theshaft is provided at its opposite ends with tapering or cone-shapedjournals, the tapers-of which extend in opposite directions, and thebearings for the said shaft are provided with journal boxes, havingtapering or conical openings through which the tapering journals areextended, the said conical or tapering open- `ings corresponding to thetaper of the said tion to enable it to be understood; Fig. 2, a

longitudinal section of the machine shown in Fig. l on the line 2 2, andFig. 3, a sectional detail on the line 3 3, Fig. l.

Referring to Fig. l, A represents a yokeshaped casting provided witharms a a. having hollow bearings a2 d3, which parts may be of anysuitable construction, such as now commonly employed in boot and shoetrimming machines, the frame-work described being usually supported uponan upright column or other suitable foundation. The yokeshaped piece orframe-work A supports a cylindrical shaft b (see Fig. 2) which inaccordance with this invention is made tapering or conical at itsopposite ends to form tapering journals b bthe tapers of the saidjournals extending in opposite directions as clearly shown in Fig. 2.

The tapering journals b b2 have co-operating with them journal boxes b3b4, which may be of any suitable material, and which, in the presentinstance, are shown as cylindrical in shape to fit into and extendthrough the hollow bearings a2 a3 of the framework.

The journal boxes b3 b4 are provided with holes or openings b5 b6extended through them, and tapered or made conical to tit theircooperating journals. The journal boxes b3 btv are adj ustably securedor held in position within the bearings a2 a3 against longitudinalmovement by suitable means, which, in the IOO present instance, is shownas threaded collars or rings c c c2 c3 engaging screw threads c4 c5 c6c7 on the outside periphery of the journal boxes b3 b4 at their ends,the said threaded rings or collars, when in adjusted position, abuttingagainst the opposite ends of the bearings a2 a3 as clearly shown in Fig.2.

The shaft b may be prevented from moving longitudinally in any suitableor desired manner, and in the present instance, the cyv lindricalportion of the shaft intermediate of the conical journals is representedas provided at one end with a ring or collar cs rendered fast on theshaft by a set screw c, the ring or collar o8 co-operating with the journal box Z13, while the opposite end of the cylindrical portion of theshaft may be provided With a similar collar, but I prefer to extend thetapering journal b2 beyond its box b4 and provide the extended portionwith screw threads om with which cooperates a threaded ring or collarcl2.

From the above description, it will be seen that the journal boxes b3 b4may be adjusted longitudinally on their journals, as the said boxesbecome worn or enlarged, thereby enablingthe samejonrnal boxes to beused a substantially long time or until practically Worn out, while, atthe same time, a true and accurate bearing for the shaft is obtained,which prevents any radial or lateral movementof the shaft at either end,thereby avoiding any vibration of the same, which would be productive ofan imperfect action of the operating tool carried by the shaft.

In the present instance, I have chosen to illustrate the operating toolas a rotary cutter consisting of a cutter head or carrier d, and aplurality of cutters or knives d', which tool may be supposed to be arotary trimmer for acting upon the heel of a boot or shoe, the saidcutter having co-operating with it an edge guard or disk d2 providedwith a sleeve d3 loose upon a cylindrical portion or exten sion d4 ofthe journal b2, the sleeve d3 being prevented from longitudinal movementin one direction by the cutter head d and in the opposite direction bythe collar d5 fast on the shaft b by the set screwr d6.

The cutter head or carrier d is fitted on a portion dw of the shaftextended beyond the cylindrical portion d4, and may be secured thereonin any suitable manner, it being shown in Fig. 1, as fastened on by ascrew dw, which extends into a threaded socket in the end of theextension d15 and not herein shown.

The journal boxes b3 b4, while adjustable longitudinally on theirrespective journals, are prevented from rotary movement therewith in anysuitable or desired manner, and in the present instance, this isaccomplished by providing each journal box with a longitudinal groove orslot f on its outer circumference, into which projects a spline or key 65 f also fitted into a corresponding groove or slot in the innercircumference of the bearing as shown in Fig. 3, the said key or splinebeing rigidly secured by means of the set screwfo by which lateralmovement or play of the journal box in its bearing is avoided.Furthermore, each journal box may be provided with a suitable channel f2extended toward the opposite ends of the said box and provided withbranch ducts or channels extended through the said box, the channel f2communicating by a supply duet f4 in its bearing with an oil cup f5, asshown in Fig. 1.

The cylindrical shaft b, as herein shown, has fast to it in any suitablemanner, apulley f6, and the tapering journal b may be extended beyondits box b3 and have fitted on it a fly or balance wheel f7 having atapering bore or hole in its hub to fit. the tapering end of the saidjournal, the extreme end of which may be provided with screw threads f3to receive a nutf, which locks the said fiy wheel on the said journal.

In the present construction of the machine` the journal box b3 maybeadjusted on the journal b to take up the wear, by partially unscrewingthe threaded collar c, and then screwing up the collar c', which latter,acting against the bearing a2, draws the journal box up on the taperingjournal b', after which the collar o8 is placed against the box b3 andrendered fast on the shaft l).

To adjust the journal box b4, the operator unscrews the threaded collars012,03 and screws up the collar c2, which latter acts against thebearings a3 and draws the journal box h4 upon the journal b2.

I claim- 1. The combination with a rotatable shaft provided withtapering or conical journals extended in opposite directions, journalboxes having tapering holes through which said journals extend, bearingsfor said boxes, and adjustable means at opposite ends of the saidbearings to adjust the said boxes on the taperering journals, and secureor lock the said boxes in their bearings in their adjusted positions,for the purpose specified.

2. The combination with a rotatable shaft provided with oppositelyextended tapering or conical journals, journal boxes having taperingholes through which said journals extend, and provided with screwthreads on their outer peripheries, hollow bearings .through which saidboxes extend, and threaded collars to engage the screw threads of thejournal boxes at opposite ends of their bearings, sub stantially as andfor the purpose specified.

3. The combination with a rotatable shaft provided with taperingjournals, tapering journal boxes for said journals, bearings for saidboxes through which the said boxes extend, means adjustable on theopposite ends of the said boxes co-operating with the opposite ends ofthe bearings to adjust the boxes on their tapering journals and lock thesaid boxes in their adj usted positions against longitudinal movement intheir bearings, substantially as described.

4. The combination with the shaft b pro- IIO vided with the oppositelyextended tapering journals b b2, the tapering journal boxes b3 b4co-operating therewith and provided at their ends with screw threads ontheir outer peripheries, the hearings a2 a3, and the threaded collarsengaging the threaded peripheries of the journal boxes and co-operatingwith the said bearings to adjust and lock the boxes in their adjustedpositions, substantially as described.

5. In a machine of the class described, the following instrumentalities,Vizz-a yokeshaped frame provided with arms a a having bearings,oppositely tapered journal boxesextended through said bearings, theshaft b provided with oppositely tapering journals extended through thesaid journal boxes, and means secured to the shaft b intermediate of itsjournals and by which rotation of the shaft in its journal boxes, may beeffected, substantially as described.

6. In a machine of the class described, the combination with a rotaryshaft provided with oppositely tapering journals, oppositely taperingjournal boxes through which said journals extend, bearin gs for saidboxes, means to adjustably secure the said boxes in their bearings, anoperating tool secured to one of the tapering journals beyond its box,and a i'ly or balance wheel provided with a tapered bore to t thetapered end of the other journal eX- tended beyond its box,substantially as described.

7. In a machine of the class described, the combination with the shaft bprovided at one end with the tapering journal b and at its other endwith the oppositely tapering journal b2L having its end adjacent to theshaft h provided with screw threads 010, journal boxes b3 b4 providedwith tapering holes b5 h6, screw threads on the peripheries of the saidboxes at their opposite ends, bearings for said journal boxes, threadedcollars c, c', c2, c3, the threaded collar 012 engaging thescrew-threads cw, the pulley f6 fast o n the shaft b intern1ediate ofits journals, the fly wheel fitted on the extended end of the journalb', and a cutting tool secured to the extended end of the journal h2,substantially as described.

In testimony whereof I have signed my naine to this specification in thepresence of two subscribing witnesses.

AMBROSE S. VOSE.

Witnesses:

JAS. H. CHURCHILL, J. MURPHL

